Darmstadt 2008 – scientific programme

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A: Fachverband Atomphysik

A 12: Posters: Interaction with intense laser pulses

A 12.11: Poster

Tuesday, March 11, 2008, 16:30–18:30, Poster C3

Ionization of molecular hydrogen in intense ultrashort laser pulses: orientational dependence — Yulian Vanne and •Alejandro Saenz — AG Moderne Optik, Institut für Physik, Humboldt-Universität zu Berlin, Hausvogteiplatz 5-7, 10117 Berlin, Germany

The full ab initio treatment of the ionization process of molecular hydrogen in strong laser field remains a challenge for theory. For linear polarized laser pulses the complexity of the problem depends on the orientation of molecule with respect to molecular axis. Whereas the simplest case of parallel orientation has recently been discussed in literature, there exist no data for the more complicated case of a perpendicular orientation.

In the present work we demonstrate first results obtained for the case of perpendicular orientation based on the method described in [1]. We compare the ionization yield for parallel and perpendicular orientation for different internuclear distances and laser pulses.

[1] M. Awasthi et al., J. Phys. B 38, 3973 (2005)